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Let $X$ be an arbitrary complex surface and $D \subset X$ a domain that has a non compact group of holomorphic automorphisms. A characterization of those domains $D$ that admit a smooth real analytic, finite type boundary orbit accumulation…

Complex Variables · Mathematics 2011-10-19 Kaushal Verma

We survey results arising from the study of domains in C^n with non-compact automorphism group. Beginning with a well-known characterization of the unit ball, we develop ideas toward a consideration of weakly pseudoconvex (and even…

Complex Variables · Mathematics 2016-09-06 A. V. Isaev , S. G. Krantz

In this paper, the characterization of domains in $\mathbb C^n$ by their noncompact automorphism groups are given.

Complex Variables · Mathematics 2009-06-30 Do Duc Thai , Ninh Van Thu

For convex domains with $C^{1,\epsilon}$ boundary we give a precise description of the automorphism group: if an orbit of the automorphism group accumulates on at least two different closed complex faces of the boundary, then the…

Complex Variables · Mathematics 2021-02-03 Andrew Zimmer

We give a complete description of bounded Reinhardt domains of finite boundary smoothness that have non-compact automorphism group. As part of this program, we show that the classification of domains with non-compact automorphism group and…

Complex Variables · Mathematics 2008-02-03 A. V. Isaev , S. G. Krantz

We give an example of a bounded, pseudoconvex, circular domain in ${\mathbb C}^3$ with smooth, real-analytic boundary and non-compact automorphism group, which is not biholomorphically equivalent to any Reinhardt domain.

Complex Variables · Mathematics 2009-09-25 Siqi Fu , Alexander V. Isaev , Steven G. Krantz

In this note, we consider models in $\mathbb C^2$. The purpose of this note is twofold. We first show a characterization of models in $\mathbb C^2$ by their noncompact automorphism groups. Then we give an explicit description for…

Complex Variables · Mathematics 2014-10-09 Ninh Van Thu , Mai Anh Duc

We study the automorphisms group action on a bounded domain in $\CC^n$ having a boundary point that is exponentially flat. Such a domain typically has a compact automorphism group. Our results enable us to generate many new examples.

Complex Variables · Mathematics 2010-10-08 Steven G. Krantz

We give, in dimensions three or greater, an example of a bounded, pseudoconvex, circular domain in complex space with smooth real analytic boundary and non-compact automorphism group which is not biholomorphically equivalent to any…

Complex Variables · Mathematics 2009-09-25 Siqi Fu , A. V. Isaev , Steven G. Krantz

We give an explicit description of hyperbolic Reinhardt domains D in C^2 such that: (i) D has C^k-smooth boundary for some k greater than or equal to 1, (ii) D intersects at least one of the coordinate complex lines $\{z_1=0\}$,…

Complex Variables · Mathematics 2009-09-25 Alexander V. Isaev , Steven G. Krantz

We study domains in complex $n$-space with automorphism group that does not depend on the full $n$ dimensions of the ambient space. A sufficient geometric condition is obtained to guarantee that a domain has such a "thin" automorphism…

Complex Variables · Mathematics 2008-10-28 Jisoo Byun , Steven G. Krantz

For bounded pseudoconvex domains with finite type we give a precise description of the automorphism group: if an orbit of the automorphism group accumulates on at least two different points of the boundary, then the automorphism group has…

Complex Variables · Mathematics 2020-12-02 Andrew Zimmer

We give an explicit description of smoothly bounded Reinhardt domains with noncompact automorphism groups. In particular, this description confirms a special case of a conjecture of Greene/Krantz.

Complex Variables · Mathematics 2008-02-03 Siqi Fu , Alexander V. Isaev , Steven G. Krantz

For a smoothly bounded pseudoconvex domain $D\subset{\Bbb C}^n$ of finite type with non-compact holomorphic automorphism group $\text{Aut}(D)$, we show that the set $S(D)$ of all boundary accumulation points for $\text{Aut}(D)$ is a compact…

Complex Variables · Mathematics 2009-09-25 A. V. Isaev , S. G. Krantz

We classify the tube domains in C^4 with affinely homogeneous base whose boundary contains a non-degenerate affinely homogeneous hypersurface. It follows that these domains are holomorphically homogeneous and amongst them there are four new…

Complex Variables · Mathematics 2007-05-23 Michael Eastwood , Vladimir Ezhov , Alexander Isaev

We determine the automorphism groups of unbounded homogeneous domains with boundaries of light cone type. Furthermore we present the group-theoretic characterization of the domain. As a corollary we prove the non-existence of compact…

Complex Variables · Mathematics 2015-02-24 Jun-ichi Mukuno , Yoshikazu Nagata

In this paper we study the automorphism group of smoothly bounded convex domains. We show that such a domain is biholomorphic to a "polynomial ellipsoid" (that is, a domain defined by a weighted homogeneous balanced polynomial) if and only…

Complex Variables · Mathematics 2017-01-17 Andrew M. Zimmer

It is shown that every hyperbolic rigid polynomial domain in C^3 of finite type, with abelian automorphism group is equivalent to a domain that is balanaced with respect to some weight.

Complex Variables · Mathematics 2011-09-28 G. P. Balakumar

We study the set of boundary orbit accumulation points of the automorphism group action on a bounded domain in $\CC^n$. Topological and geometric properties of this set are derived.

Complex Variables · Mathematics 2010-10-08 Steven G. Krantz

In this article, we consider an infinite type domain $\Omega_P$ in $\mathbb C^2$. The purpose of this paper is to investigate the holomorphic vector fields tangent to an infinite type model in $\mathbb C^2$ vanishing at an infinite type…

Complex Variables · Mathematics 2015-06-08 Ninh Van Thu
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